Sash-fastener



(No Model.)

C. L Ll EMERY. SASH FASTENBR.

@5mm A x mililm J Patented Sept UNITED STATES PATENT v@Erica CHARLES L. L. EMERY, OF BIDDEFORD, MAINE.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 246,876, dated September 13, 1881.

Application tiled May 17, 1881.

To all whom it may concern:

Be it known that I, CHARLES L. L. EMERY, ot Biddeford, in the county of York, State of'Maine, have invented a certain new and useful Improvement in Sash-Locks, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which my invention appertains to make and use the saine, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure l is an isometrical perspective view, showing the lock in use; Fig. 2, a vertical section, showing the arrangement of the lock in the window -frame; Fig. a perspective view, showing a detached portion of Fig. 4; Fig. 4, an isometrical projection, showing the lock with one of its side plates removed; and Fig. 5, a sectional side elevation. Fig. 6 is a perspective View of the open catch and its journals and stud or projection cast in one piece.

Like letters of referenceindicate correspond ing parts in the different figures of the drawings.

Myinvention relates more especially to that class of sash-locks which are inserted in the window-frame and operate on the vertical or side rail ofthe sash.

The nature of my invention consists in the combination, with a box or case, which is made to tit in a mortise cut in a window-frame and adapted to receive and support the catch devices, of an oscillating rectangular catch andan actnating-sprin g, the catch being constructed with centrally-arranged journals at each end, and also with a projecting ear or lug, also centrally arranged, whereby the said spring will cause one end of the catch to hold the sash up and the opposite end ofthe catch to hold the sash down, and when the face ofthe catch is adjusted in a plane parallel to the edge of the sash it will be held by the spring out of operation.

In the drawings, A represents the windowframe, B the sash, and C the lock.

The body of the lock consists, principally,in a face-plate, D, and box E, preferably cast integral, the box being provided with a removable side plate, G.

(No model.)

Journaled horizontally within the box there is arectangular gib or catch, I, its outer journal, H, being elongated and squared to receive the lever J and key L, and its innerjournal supported in the hole a, orp the side G, which side is secured in position on the boxby means ofa screw (not shown) passing through the hole z. rEhe catch is attened on its outer side and provided with two slightly-rounded jaws, 'm fm', thejaws extending through an opening, K, in the face-plate D when in use, the outer face ofthe catch not being quite flush with the outer face ofthe plate, but arranged slightly back ofthe sanne.

A coiled spring, M, is disposed within the box E, its inner end being rmly secured to the rear end ofthe box, and its outer or free end to the stud or projection N on the inner face ot' the catch I. This catch is formed with a large opening through it, and it is cast entire with the stud or ear N and the two journals. The arrangement and action of this spring on the catch is such as to force thejaws m m' alternately against the side rail, O, and thus secure the sash in any desired position, thejaw m preventing thesash from fallingand thejaw m preventing it from being raised.

The horizontal dotted line a: a' is drawn through the center of motion for the catch I, and when the outer l'ace of this catch is held by means ofthe leverJor keyLin parallelism with the vertical sash-rail O, the outer or free end of the spring M will be on this line; but when the catch is turned by means of the le ver or key so as to bring its end m into contact with the rail, the outer end of the spring, which acts expansively, will pass above the line a' and press the upper end ofthe catch forcibly against the rail to holdup the sash and so, in like ina-nner, when the catch is turned to bring its end m into contact with the rail the outer end of the spring will pass below the center ot" motion or line x and press the end m' against the sash to prevent it from being raised; hence it will be seen that when it is desired to raise or lower the sash the catch must be held in a vertical position, or out ot' contact with the saine, by means of the lever or key.

A slot, P, is cut inthe window frame or cas IOO through it, as shown in Figs. 4 and 6, access is given to the interior of the box E without the necessity of removing this box from the window-frame and detaching the side G from the box.

lt will be observed that I attach the spring directly to the projecting ear of the catch l, so that the tension of this spring is at all times acting to hold the catch either in the position 2o shown in full lines, Fig. 5, or in the angular positions indicated in dotted lines in the same ligure.

Having thus explained my invention, what I claim is The combination ofthe two-part mortise-case, castwitharectangular openingthroughits faceplate, and a means for attaching a spring to its back plate, the oscillating rectangular catch, cast entire with two journals, anda right-angular projectin g perforated ear-,cen trall y arranged between the upper and lower bitingends of the catch, a spring connected to said ear and to the back plate of the mortise-case, anda lever removably applied on one of the ljournals of the catch for operating the same, substantially as described.

CHARLES L. L. EMERY. Witnesses:

OTIs T. GAREY, W. S. MORSE. 

